Carrier



June 14, 1932. H, M KOLL 1,862,540

CARRIER A Filed Dec. 31, 1930 Patented June 14, 1932 UNITED STATES PATENT HENRY M. KOLL, OF HINSDALE, ILLINOIS, ASSIGNOR TO TESTER/N ELECTRIC COM- PANY, INCORPORATED, OF NEW YORK, N. Y., A.y CORPORATION OF NEW YORK CARRIER Application filed December 31, 1930.

This invention relates to carriers, and more vparticularly to metallic carriers which may be subjected alternately to high and low temperatures; for example, when used in annealing operations.

The primary object of this invention is to provide an improved carrier constructed to permit expansion and contraction thereof when subjected to temperature variations without deleterious warping and cracking.

In accordance with one embodiment of this invention as applied to a metallic skid or carrier used in the handling and annealing of copper wire or rod and adapted to be handled by cranes, hoists, or other conveying apparatus, there is provided a carrier structure which has embodied therein telescopic means which permits expansion and contraction of the structure Without appreciable deformation thereof. Specifically, the carrier structure comprises a square horizontal load supporting frame, including a grate or grille serving as a floor, the frame having upright corner members fixed thereto for supporting the frame from the floor with the members extending above the frame. Upon opposite sides of the carrier adjacent the upper end of each of the upright members are aligned horizontal channel members having their inner ends spaced apart intermediate the upright members. Means associated with the inner ends of the channel members serve to enclose a 'member spanning the space therebetween and maintain the channel members in alignment to permit expansion and contraction thereof when subjected alternately to high and low temperatures. Integrally united, cooperating slanting and vertical hoisting bars fixed to the upright members and the load supporting frame, respectively, the vertical bars extending freely through the horizontal channel members, serve as a means for attaching the carrier to the suspension and hoisting means.

Other objects and advantages of the inven- Serial N0. 505,952.

tion will be more apparent from the following detailed description and the accompanying drawing thereof, wherein Fig. 1 is an end elevational view of a carrier embodying the invent-ion;

Fig. 2 is a side elevational View thereof;

Fig. 3 is a fragmentary plan view of the left end of Fig. 2, and

Figs. 1 and 5 are enlarged detail plan sectional views taken on the lines -f and 5 5, respectively, of Fig. 1.

Referring now to the drawing in detail, one embodiment of the skid or carrier, which is constructed from structural metallic shapes, comprises a square horizontal load supporting frame formed from channel bars 11 reinforced in a manner known to the art by intersecting T-shaped bars 12 (Figs. 2 and 3). The channel bars 11 and the T-shaped bars 12 are preferably integrally united to form the frame 10 by welding, the tops of the T-shaped bars being positioned below the upper surface of the channel bars, thereby leaving a space for the reception of a grate or grille 13 serving as a door for the carrier upon which the load is supported, t-he grate being freely mounted in and substantially flush with the upper surface of the frame 10 and resting upon the T-shaped bars so that it may be reversed after wear occurs on one side. The frame 1() is supported a desired distance from the floor by upright angle bars 16, each of which includes a cast foot member 17 welded to inner angular surfaces of the bar, the upper ends of the foot members abutting the lower surface of the frame 1() which is also welded to the angle bars. Triangular shaped truss pieces 1S are welded to each vert-ical edge of the angle bars 16 and to the outer sides of the frame 1G to provide additional strength for resisting iexing movements between the angle bars and the frame.

The carrier at opposite sides is fitted with removable plates 19 which extend between the upright bars 16 and rest at their lower corners upon stop lugs Q welded to the bars a short distance above the floor grate 13, the side plates being guided during removal or replacement by angle bars 23 2 and ll) welded to the upright bars 16. Hand holes 24E are formed in the side plates 19 to facilitate the lifting and lowering thereof. The purpose of the side plates 19 is to insure that the load mounted upon the carrier is retained thereon during transportation and they are made removable so that before the carrier with its load is charged into an annealing furnace, they may be removed to permit the load to be more directly exposed to the heat of the furnace. Y

Upon opposite sides of the carrier disposed at right angles to the side plates 1S) and extending inwardly from the upright bars 1G, adjacent their upper ends, are horizontally aligned channel bars 25, the bars upon each side being spaced apart at their inner ends intermediate the associated upright bars as indicated at 2G. At their outer ends the channel bars 25 are each notched and cut away (Figs. 1 and l) in such a manner that a vertical wall 27 of the bar abuts the inner surface of the associated upright bar 16, horizontal arms E23 of the channel bar 25 projecting outwardly and extending along the outer surface of the upright bar 16. Uien securing the channel bars 25 to the upright l ars 1G at the sides of the carrier, vertically extending flattened ends of bowed hoisting bars or hails 30, to be referred to hereinafter, are also secured in position by rivets which extend through the several bars, the whole being further secured together` by welding, thus forming a very strong connection between the several bars. Each of the ,mi adjacent inner ends of the channel bars 25 has welded thereto a plate 31 which is arranged iush with the outer edges of the horizontal arms 28 of the bar along the sides thereof and formed to extend inwardly as in indicated at 32 to abut the outer vertical wall 27 of the bar. The plate 31 secured to each of the bars 25, in the manner described, forms a pocket 33 at the inner end of each of the pair of spaced bars at each side of A the carrier. Freely mounted in each pair of pockets 33 and spanning the space 26 therebetween is a rectangular shaped bar 34 (Figs. 1 and 5), which bar in cooperation with the pockets forms a telescopic means which serves to maintain the adjacent ends of the bar 25 at all times in substantial horizontal alignment, and at the same time permit expansion and contraction thereof when the carrier structure is subjected alternately to high and low temperatures.

The bowed hoisting bars or bails previously referred to extend above ann across the spaced channel bars 25 located at each `side of the carrier, and cooperating with fr@ each of the bars 30, as a means for suspending and hoisting the carrier, is a U-shaped upright bar 37. At its upper closed end the U-shaped bar 37 is welded to the underside of the bowed bar 3() at a point intermediate its ends, and the spaced arms of the bar 37 extend freely downwardly through notches 38 formed in the horizontal arms 28 of the channel bars 25 adjacent each end of the bar 34 which is enclosed within the pockets 33 for spanning the space 26 between the channel bars. The lower ends of the spaced arms of the U-shaped bar 37 are flattened and fixed to the outer side face of the load supporting frame 10 by riveting and welding. By connecting the bowed hoist-ing bars 30 to the load supporting frame 10 by means of the U-shaped bars 37 a safety feature is provided whereby the carrier with its load will still be suspended from the conveying means in ease the bowed bars 30 crack or break loose from the upright angle bars 16. The notches 38 formed in the horizontal arms 23 of the channel bars 25 through which the spaced arms of the U-shaped bar 37 extend are suiiieiently large so that during the expansion and contraction of the channel bars 25 the latter may freely move without engaging the arms of the U-shaped bar 37. Vertical tubular members in the form of pipes extend from the channel bars Q5 to the frame 10 at each side of the spaced arms of the U-shaped bar 37 to add rigidity tothe structure, the ends of the pipes 39 being integrally united to the bars and the frame 10 by welding.

rPhe carrier as hereinbefore mentioned is square to facilitate the superimposing of one upon another while in storage or when positioned in the annealing furnace. This arrangement is clearly shown in Fig. 1 by the fragmentary dotted outline of one carrier upon another, in which position the foot members 17 extend into the upper ends of the upright corner angle bars 1G, thereby preventing relative lateral movement between the superimposed carriers.

It will be apparent. that a carrier structure I embodying the telescopic expansion joints as hereinbefore described will readily permit the necessary expansion and contraction of the carrier structure when subjected alternately to an extremely high temperature and then suddenly quenched in water, such, for example, as is done in some metal annealing operations without deleteriously warping and cracking the elements of the carrier.

Although the construction of the carrier illustrated in the drawing and hereinbefore described may be used to advantage in metal annealing operations, it should he understood that its use may have a broader application, and furthermore it should not be limited to the particular construction shown, except as defined by the appended claims.

l/Vhat is claimed is:

l. In a carrier designed to be subjected to temperature variations, a load supporting member, spaced frame members secured thereto, and telescopic means connecting said frame members.

2. In a carrier designed to be subjected to temperature variations, a load supporting member, spaced frame members secured thereto, means connecting the frame members rigidly together, and telescopic means connecting the frame members and spaced from said means.

3. ln a carrier designed to be subjected to great temperature variations, a load supporting frame, corner uprights secured thereto and extending therefrom, aligned members secured to the uprights extending toward each other with their adjacent ends spaced apart, and means associated with the spaced ends of the members for connecting the same and permitting contractive and expansive movements thereof. l

4L. In a carrier designed to be subjected to great temperature variations, a load supporting frame, corner uprights secured adjacent their lower ends to the frame with their upper ends spaced therefrom, members secured to the uprights adjacent their upper ends and extending toward each other with their adjacent ends spaced apart, and means associated with the spaced ends of the members for connecting the same and permitting contractive and expansive movements thereof.

5. ln a carrier designed to be subjected to great temperature variations, a load supporting frame, corner uprights secured thereto and extending thereabove, a pair of frame members secured to the uprights from opposite sides of the frame and extending toward cach other with their adjacent ends spaced apart, means cooperating with each of the spaced ends of the members to form a pocket, and means mounted in the pockets of each pair of members and spanning the space therebetween for connecting the same and permitting contractive and expansive movements thereof.

6. ln a carrier designed to be subjected to great temperature variations, a load supporting frame, corner uprights secured adjacent their lower ends to the frame with their upper ends spaced therefrom, channel shaped frame members welded to the uprights with their spaced parallel arms extending outwardly thereof and their adjacent ends spaced apart intermediate the uprights, a plate welded to each of the spaced ends of the members extending along the edges of the parallel arms thereof and rearwardly to the connecting wall to form a pocket, and a bar mounted in the pockets and spanning the space between the members for connecting the same and permitting contractive and expansive movements thereof.

7. In a carrier designed to be subjected to great temperature variations, upright spaced frame members, hoisting means connecting said members, and telescopic means arranged below said hoisting means for connecting said frame members.

8. ln a carrier designed to be subjected to great temperature variations, upright spaced frame members, bowed hoisting means rigidly secured to and connecting said members adjacent their upper ends, members secured to the frame members at the points of securing the bowed hoisting means to the frame members and extending toward each other with their adjacent ends spaced apart below the bowed hoisting means, and means associated with the spaced ends of the members for connecting the same and permitting contractive and expansive movements thereof.

9. In a carrier designed to be subjected to great temperature variations, a load supporting frame, corner uprights secured adjacent their lower ends to the frame with their upper ends spaced therefrom, bowed hoisting means connecting said uprights adjacent their upper ends, telescopic means connecting said uprights between said bowed hoisting means and the frame, and means for connecting said bowed hoisting means to the frame.

10. ln a carrier designed to be subjected to great temperature variations, a load supporting frame, corner uprights secured adjacent their lower ends to the frame with their upper ends spaced therefrom, bowed hoisting means upon opposite sides of the frame connecting said uprights adjacent their upper ends, a pair of frame members secured to the upright-s at each side of the frame below the hoisting means and extending toward each other with their adjacent ends spaced apart, means cooperating with each of the spaced ends of the members to form a pocket` mea-ns mounted in the pockets of each pair of members and spanning the space therebetween for connecting the same and permitting contractive and expansive movements thereof, and means freely extending through the pockets of each member for connecting` said bowed hoisting means to the frame.

1l. In a carrier designed to be subjected to great temperature variations, a load supporting frame, upright spaced frame members secured to and extending upwardly therefrom, bowed hoisting means connecting said members adjacent their upper ends, members secured to the frame members extending toward each other with their adjacent ends spaced apart below the bowed hoisting means, means associated with the spaced ends of the members for connecting the same and permitting contractive and expansive movements thereof, lrJ-shaped means extending past the latter means and free thereof for connecting said bowed hoisting means to the frame, and

members arranged at each side of the U- shaped means, secured t0 and connecting the spaced members extending from the frame members to the frame.

In Witness whereof, I hereunto subscribe my name this 22nd day of December A. D.

HENRY M. KOLL. 

